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Watts 8B Hose Bibb Vacuum Breaker - Hose Bibb Vacuum Breakers
WattsHose Bibb Vacuum Breakers

Watts 8B Hose Bibb Vacuum Breaker

The WATTS Vacuum Breaker (MPN 8B) is a hose bibb vacuum breaker with Female GHT x Male GHT connections, designed for back-siphonage protection against high health hazards in water media. Constructed with a brass body…

SKU 3G-OTH-440061

Brand
Watts
Item
8B Hose Bibb Vacuum Breaker
Part Number
8B
Category
Hose Bibb Vacuum Breakers
Available to Order
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
8B
Type
For Water Media, 33°F – 180°F, Brass, Back-Siphonage
For Media
Water
Standards
UPC
Drain Type
Manual
Body Material
Brass
Seal Material
Rubber
Connection Type
Female GHT x Male GHT
Protection Type
Back-Siphonage
Freeze Protection
Yes
Security Mechanism
Break-Away Set Screw
Vacuum Breaker Style
Hose Bib Vacuum Breaker
Hazard Protection Level
High Health Hazard
Connection Type - Side 1
GHT
Connection Type - Side 2
GHT
Includes Atmospheric Vent
No Atmospheric Vent
Includes Drain Capability
Manual Drain
Connection Gender - Side 1
Female
Connection Gender - Side 2
Male
Includes Freeze Protection
Freeze Protection Included

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Vacuum Breaker (MPN 8B) is a hose bibb vacuum breaker with Female GHT x Male GHT connections, designed for back-siphonage protection against high health hazards in water media. Constructed with a brass body and rubber seal, it includes manual drain capability, freeze protection, and a break-away set screw security mechanism. This unit operates without an atmospheric vent and is UPC certified.

Frequently Asked Questions

What is the WATTS Vacuum Breaker 8B used for?

The WATTS Vacuum Breaker 8B is used for back-siphonage protection against high health hazards in water systems. It connects to a hose bibb with Female GHT x Male GHT threads, preventing contaminated water from flowing backward into potable supply lines. Common in irrigation, commercial, and residential applications.

What are the specifications of the WATTS Vacuum Breaker 8B?

The WATTS Vacuum Breaker 8B has a brass body with rubber seal, Female GHT x Male GHT connections, manual drain capability, freeze protection, and a break-away set screw. It operates from 33°F to 180°F for water media, is UPC certified, and provides back-siphonage protection for high health hazards.

Where to buy the WATTS Vacuum Breaker 8B worldwide?

You can source the WATTS Vacuum Breaker 8B through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this genuine WATTS part to procurement teams globally.

How to install the WATTS Vacuum Breaker 8B?

Install the WATTS Vacuum Breaker 8B by threading the Male GHT end onto a compatible hose bibb outlet, then hand-tighten. Ensure the break-away set screw is secured to prevent tampering. For freeze protection, manually drain the unit before cold weather. Always follow local plumbing codes and the manufacturer's instructions.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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Watts Products

3G Electric supplies Watts hose bibb vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Hose bibb vacuum breaker with brass body and rubber seal. Provides back-siphonage protection for water systems, rated for high health hazard. Features manual drain and freeze protection. Connections: Female GHT x Male GHT. Temperature range: 33°F to 180°F. Complies with ANSI A112.1.3 (ASSE 1011)
Watts
Hose bibb vacuum breaker with brass body and rubber seal. Provides back-siphonage protection for water systems, rated for high health hazard. Features manual drain and freeze protection. Connections: Female GHT x Male GHT. Temperature range: 33°F to 180°F. Complies with ANSI A112.1.3 (ASSE 1011)

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